
public class type
{

}

class TInt extends Id
{
    TInt()
    {
        name = "int";
    }
}

class TString extends Id
{
    TString()
    {
        name = "string";
    }
}

class TBool extends Id
{
    TBool()
    {
        name = "bool";
    }
}

class TNil extends Id
{
    TNil()
    {
        name = "nil";
    }
}

class TInterface extends Id
{
    TInterface()
    {
        name = "interface";
    }
}